forked from etcd-io/etcd
/
upgrade.go
48 lines (43 loc) · 1.14 KB
/
upgrade.go
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package etcd
import (
"os"
"time"
"github.com/coreos/etcd/log"
"github.com/coreos/etcd/server"
"github.com/coreos/etcd/third_party/github.com/coreos/go-etcd/etcd"
)
func registerAvailableInternalVersions(internalBinaryDir, name, addr string, tls *server.TLSInfo) {
var c *etcd.Client
if tls.Scheme() == "http" {
c = etcd.NewClient([]string{addr})
} else {
var err error
c, err = etcd.NewTLSClient([]string{addr}, tls.CertFile, tls.KeyFile, tls.CAFile)
if err != nil {
log.Fatalf("client TLS error: %v", err)
}
}
vers, err := getInternalVersions(internalBinaryDir)
if err != nil {
log.Infof("failed to get local etcd versions: %v", err)
return
}
for _, v := range vers {
for {
_, err := c.Set("/_etcd/available-internal-versions/"+v+"/"+name, "ok", 0)
if err == nil {
break
}
time.Sleep(time.Second)
}
}
log.Infof("%s: available_internal_versions %s is registered into key space successfully.", name, vers)
}
func getInternalVersions(internalBinaryDir string) ([]string, error) {
dir, err := os.Open(internalBinaryDir)
if err != nil {
return nil, err
}
defer dir.Close()
return dir.Readdirnames(-1)
}